INDEX. 



759 



Great apodeme of penis. 743 

 Great cephalic disc. See Head disc 

 Great entopleuron, 172 

 Great hooks of larva, 40, 45 

 Great rods of compound eye, 516 



axial threads of, 525 



functions of, 559 



morphology of, 523 



post-mortem changes in, 525, 

 529 



structure of, 524, 529 



supposed innervation of, 521, 

 522 



theory of, 530 

 Great thoracic muscles, 223 



action of, 224 

 Grenadier on compound eye, 519 



on cornea of compound eye, 528 



on eye of Limulus, 547 



on innervation of compound eye, 

 521 



on membrana basilaris, 532 



on ocelli, 516 



on retinal end-organs, 520 



on vision in Arthropods, 555 

 Griffith on Malpighian tubes, 415 

 Gryllotalpa, development of, 233 

 Gryllus, ovary of, 669 



supra-tympanic organ of, 602 



HAARSTIFTE, 596 



Habits of Blow-fly, 5 



Haeckel on the position of the 



Diptera, 26 

 Haemal surface, 8 

 Hasmatoxylin solution, 96 

 Halliburton on Pettenkofer's reac- 

 tion, 415 

 Halter, 25, 603 



basal organs of, 61 1 



canals of, 606 



capitellum of, 607 



chordotonal organs of, 607, 



613 

 comparison of, with semicircular 



canals, 616 

 cupola of, 605 

 development of, 612 

 effect of sound vibrations on, 



618 



experiments on, 616 

 functions of, 614, 618 

 ganglia of, 435 



Halter, general description of, 604 



hearing, relation to, 618 



homologies of, 188 



morphology of, 188, 603 



movements of, 604 



nerves to, 217, 229, 605 



of Leptis, 606 



of Tipula, 606 



removal of, 377, 617 



rudiments of wing in, 607 



scabellum of, 604 



scapal organs of, 61 1 



septum of, 608, 609 



special end-organs of, 609 

 Hammond on genital organs of 

 Tipula, 742 



on head of Tipula, 28 



on thoracic muscles, 223 

 Hamulus, 202 



Harvey on metamorphosis, 19, 24 

 Hatschek on nerve ganglia, 481 

 Hauser on functions of antennae, 592 

 Haustellum, 135 



muscles of, 392 

 Head, axis of, 124 



of larva, 33, 37 

 Head capsule, 1 19 



bibliography of, 119 



contents of, 215 



development of, 113 



general morphology of, 106, 113 



muscles of, 219 



nomenclature of, 107 



of immature imago, 124 



posterior surface of, 122 



segmentation of, 114 

 Head, development of, in nymph, 320 

 Head discs in larva, 77 



invagination of, in embryo, 259 

 Headless larvse, 27 

 Hearing, a warning sense, 497 



centres of, 474 



in Blatta, 497 



organs of. See Auditory organs 

 Heart. See Dorsal vessel 

 Hearts, accessory, 636 

 Heathcote on Julus, 157 

 Heber, 363 

 Heiden on median element in 



ganglia, 481 

 Hemiptera, head of, 115 



protandry in, 723 

 Hemispheres of imago, 453 



of larva, 68, 483 



